How do you heat LARGE (100,000g+) tanks?

[legendaryfrog]

I was just wondering, how do you heat really large tanks? Like the ones at a Public Aquarium?

Im thinking they use solar or geo-thermal heating, as butane or electric heating would be very cost prohibitive.

what do you think?

 

[fishnutham]

I thought they use boilers similar to the ones in apartment buildings,i know peeps with large home systems use hot water heaters.

 

[edotero]

This is what I use to heat my tanks.
http://www.aquaticeco.com/index.cfm/fuseaction/product.detail/iid/9217/cid/2187

 

[legendaryfrog]

Can't beleive i never thought of that.

Doing some calculations, i see that a million gallon tank would use about 2000 lbs of propane/hour, assuming it needed to heat the tank 5*F above room temperature.

 

[johnptc]

I was just wondering, how do you heat really large tanks? Like the ones at a Public Aquarium?

Im thinking they use solar or geo-thermal heating, as butane or electric heating would be very cost prohibitive.

what do you think?

large commercial swimming pool heaters would be about right.............

 

[CHOMPERS]

Can't beleive i never thought of that.

Doing some calculations, i see that a million gallon tank would use about 2000 lbs of propane/hour, assuming it needed to heat the tank 5*F above room temperature.

If you can afford the tank, the heating and water changes are not going to bother you.

 

[ewurm]

I will have to ask Matt at Underwater Adventures how they heat their tanks. If you laid down an oil slick and set it on fire, that might do it.